From 3ae87b155531b4529970c65c7a92a7399ab0233f Mon Sep 17 00:00:00 2001 From: dexter93 Date: Sun, 12 Feb 2023 18:38:36 +0200 Subject: [PATCH] core: allow locking the matrix state (#18852) Co-authored-by: Sergey Vlasov Co-authored-by: Stefan Kerkmann Co-authored-by: Nick Brassel --- quantum/keyboard.c | 14 +++++++++++++- quantum/matrix.h | 2 ++ 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/quantum/keyboard.c b/quantum/keyboard.c index e8e3292dbc5..ec2f2e4496f 100644 --- a/quantum/keyboard.c +++ b/quantum/keyboard.c @@ -252,6 +252,14 @@ __attribute__((weak)) void keyboard_post_init_kb(void) { keyboard_post_init_user(); } +/** \brief matrix_can_read + * + * Allows overriding when matrix scanning operations should be executed. + */ +__attribute__((weak)) bool matrix_can_read(void) { + return true; +} + /** \brief keyboard_setup * * FIXME: needs doc @@ -449,10 +457,14 @@ static inline void generate_tick_event(void) { * @return false Matrix didn't change */ static bool matrix_task(void) { + if (!matrix_can_read()) { + generate_tick_event(); + return false; + } + static matrix_row_t matrix_previous[MATRIX_ROWS]; matrix_scan(); - bool matrix_changed = false; for (uint8_t row = 0; row < MATRIX_ROWS && !matrix_changed; row++) { matrix_changed |= matrix_previous[row] ^ matrix_get_row(row); diff --git a/quantum/matrix.h b/quantum/matrix.h index 760d21e0c1a..a5b628fc59c 100644 --- a/quantum/matrix.h +++ b/quantum/matrix.h @@ -51,6 +51,8 @@ void matrix_setup(void); void matrix_init(void); /* scan all key states on matrix */ uint8_t matrix_scan(void); +/* whether matrix scanning operations should be executed */ +bool matrix_can_read(void); /* whether a switch is on */ bool matrix_is_on(uint8_t row, uint8_t col); /* matrix state on row */